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प्रश्न
Why did the need for man-made materials arise?
उत्तर
For several years, humans have been dependant on natural materials to meet their demands. However, there has been a shift towards the use of man-made materials as well. Increasing population, deforestation, and limited natural resources are some of the reasons due to which they need for man-made materials arose. Another reason which led to an increase in the use of man-made material was to get a comfortable lifestyle.
संबंधित प्रश्न
Rubber made by vulcanization is a ______ material.
Man-made materials are made by ______ natural materials.
Rayon is also known as ______.
Which are the natural materials obtained from plants and animals?
What are we used for?
Paper
What are we used for?
Rubber
Give scientific reason.
Man-made materials have more demand.
Give scientific reason.
Humus is a natural material.
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How is lac obtained from nature?
Find out.
How are pearls obtained?
